最近时不时在N7K上会出现引擎的crc错误告警,这告警是什么意思啊?2019 Nov 7 20:14:01 K_N7K_01 %OC_USD-SLOT1-2-RF_CRC: OC2 received packets with CRC error from MOD SUP through XBAR slot 2/inst 12019 Nov 7 20:38:35 K_N7K_01 %OC_USD-SLOT1-2-RF_CRC: OC2 received packets with CRC err...